/*-
 * <<
 * task
 * ==
 * Copyright (C) 2019 sia
 * ==
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * >>
 */

package com.sia.config.web;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

/**
 * Define interceptor
 *
 * @see
 * @author maozhengwei
 * @date 2019-04-27 15:40
 * @version V1.0.0
 */
@Component
public class VueRouteInterceptor implements HandlerInterceptor {

  @Override
  public boolean preHandle(
      HttpServletRequest request, HttpServletResponse response, Object handler) {
    return true;
  }

  @Override
  public void postHandle(
      HttpServletRequest request,
      HttpServletResponse response,
      Object handler,
      ModelAndView modelAndView) {
    if (response.getStatus() == HttpServletResponse.SC_NOT_FOUND) {
      // 将状态码置为200，不然状态码依然是404
      response.setStatus(HttpServletResponse.SC_OK);
      // 加载vue的index.html
      if (modelAndView != null) {
        modelAndView.setViewName("/index.html");
      }
    }
  }

  @Override
  public void afterCompletion(
      HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {}
}
